Self-dumping bucket.



No. 870,409. PATENTBD NOV. 5, 1907.

B. BAUS.

SELF DUMPING BUCKET;

APPLICATION FILED JULY 29, 1907.

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Prion.

BURTON A. BAUS, OF ST. JOHNSVILLE, NEW YORK.

SELF-DUMPING BUCKET.

Specification of Letters Patent.

Patented Nov. 5, 1907.

Application filed July 29,1907. Serial No. 385,968-

To all whom it may concern:

Be it known that I, BURTON A. BAUS, a citizen of the United States, residing at St. Johnsville, county of Montgomery, and State of New York, have invented certain new and useful Improvements in Self-Dumping Buckets, of which the following is a specification.

The invention relates to such improvements and consists of the novel construction and combination of parts hereinafter described and subsequently claimed.

Reference may be had to the accompanying draw ings, and the reference characters marked thereon, which form a part of this specification.

Similar characters refer to similar parts in the several figures therein.

Figure 1 of the drawings is a view in perspective of my improved self-dumping bucket, as the same appears in carrying a load, the hoisting-block being shown in vertical cross-section. Fig. 2 is a similar view with the bucket partly tipped to dumping position. Fig. 3 is a vertical cross-section of the hoisting-block taken on the broken line in Fig. 1. Fig. 4 is a horizontal crosssection of the same taken on the broken line 44 in Fig. 3. Fig. 5 is a front view of the hoisting-block.

My invention relates more particularly to improvements in self-dumping buckets of the type shown and described in U. S. Letters Patent No. 856,211, dated June 11, 1907, granted to me for self-dumping buckets, and the principal object of the invention is to secure a more stable support for the bucket in transportation.

Other objects of the invention will appear in connection with the following description.

In my said prior patented construction, the lifting chain of the bucket passed over a pulley mounted in the hoisting-block. The pulley being free to rotate afforded an unstable support for the chain, making it necessary to exercise considerable care in distributing the load within the bucket in order to maintain stability of the bucket during transportation.

In carrying out my present invention, '1 dispense with the use of the pulley and provide the hoistingblock with a fixed runway for the chain, which affords sufficient frictional resistance to a sliding movement of the chain under the tension of the supported load to make it unnecessary to give particular attention to the distributing of the load in the bucket.

Referring to the drawings wherein the invention is shown in preferred form, 1, represents the bucket, to opposite sides of the forward portion of which are connected the bail-chains, 2, which converge to a ring, 3, connected with a chain, 4, passing over the runway, 5, on the lifting-block, 6, said runway being formed as an integral part of the block. A chain,,7, connects the lifting-block, 6, directly with the rear end of the bucket at, 8. The chain, 7, is provided intermediately of its ends with a ring, 9, adapted to receive a self-releasing hook, 10, on the end of chain 4. The l1oistingblock, 6, is attached to a bail, 12, whereby it can be connected with a hoisting rope or cable not shown. The chains, 2, are provided with a spreader, 13, which may be omitted if desired.

When it is desired to transport the loaded bucket, the hook, 10, is connected with the ring, 9, leaving the portion of the chain, 7, between the hoisting-block and said ring, 9, slightly slack, the parts being in the position shown in Fig. 1.

When it is desired to dump the load, the bucket is lowered upon the ground or other suitable support until the bail-chains become sufficiently slack to permit the hook, 10, to drop out of engagement with the ring,

9. The hoisting-block is then again lifted, causing the slack in the chain, 7, to be immediately taken up and the lifting pull to be exercised directly upon the rear end of the bucket, while no pull is exercised upon the front end of the bucket until the slack in the chains, 2, 3 and 4 has been taken up and the hook, 10, brought into engagement with the hoisting-block 6. The bucket is thus caused to tip to the proper dumping angle. As shown in Fig. 2, the bucket has been thus partly tipped to the dumping angle. The hook, 10, may be any known form of open or self-releasing hook, and the bucket may be of any known form.

In passing along the runway, 5, the chain, 4, is caused to abruptly change direction at the upper corners of the body of the hoisting-block, where it passes from the horizontal to the vertical runway surfaces on the block, so that when the chain is under great tension, as when a loaded bucket is being transported, a sliding movement of the chain along its runway will be effectively prevented. When, however, a sliding movement of the chain is desired, as in dumping the bucket, said chain, 4, will be relieved of tension and can slide freely along the runway.

I have shown the hoisting-block formed of a bodycasting containing the runway, 5, and connected therewith the bail, 12, the legs of which occupy grooves in "the sides of the body-casting and are secured therein by a rivet, 16, which passes through the legs of said bail and through a portion of the block, .6, provided with an open recess, 17, to permit the connection of an intermediate portion of said rivet with the chain 7. A single rivet thus serves to connect the parts of the hoisting-block together and also to connect the hoisting-block with the chain 7. The surfaces of the hoisting-block, 6, adapted to form runways for the chain, are preferably grooved as shown.

What I claim as new and desire to secure by Letters Patent is 1. The combination with a dumping-bucket; and a hoisting-block provided With a fixed chain-runway; of a chain connecting said hoisting-block with the rear end of said bucket; an automatically releasing hook adapted to connect with an intermediate portion of said chain; and a chain-connection between the front end ,of said bucket and said hook passing over said fixed runway.

2. The combination with a dumping-bucket and a hoisting-block having a fixed chain-runway formed in part by a horizontal surface, and in part by vertical surfacesfon op posite sides of said block; of a chain connecting said hoist ing-block with the rear end of said bucket; an automat ically releasing hook adapted to connect with an intermediate portion of said chain; and a chain-connection between the front end of said bucket and said hook passing over said runway surfaces.

3. The combination with a dumping-bucket; and a hoisting-block having a fixed chain-runway, and provided on its underside with an open recess; a bail embracing between its legs said hoisting-block; and a rivet inserted through and connecting together the legs of said bail and the interposed hoisting-block, passing through said open recess; of a chain connected at one end with the rear end of said bucket, and at the other end with the portion of said rivet located within said open recess; an automatically releasing hook adapted to connect with an intermediate portion of said chain; and a chain-connection between the front.

end of said bucket and said hook passing over said runway. In testimony whereof, I have hereunto set my hand this 22nd day of July, 1907.

BURTON A. BAUS.

Witnesses:

A. M. EVANS, R. G. WALRATH. 

